Sole-laying machine



F. E. VALOES.

SOLE LAYING MACHINE.

APPLICATION FILED MAY 6.1918.

1,389,714. PatentedSept. 6,1921;

3 SHEETS-SHEET 2. 38

QJZiO Z INVENTOR fe/llxfi' i a'lolis' BY I ATTORNEY F. E. VALOIS.

SOLE LAYING MACHINE.

APPLICATION FILED MAY 61 I918.

1,389,714, PatentedSept. 6, 1921.

3 SHEETS$HEET 3. 53

24 llllli h u #1 "Hill 44 lulu (5,2

1: I i1 illuui' INVENTOR ,ZZQ/IIXE./7/0/6 ATTORNEY.

UNITED STATES PATENT OFFICE.

FELIX'EMILE VALOIS, OF HAVERHILL,

MASSACHUSETTS, ASSIGNQR TO HAMEL SHOE SOLE-LAYING- MACHINE.

Specification of Letters Patent.

Patented Sept. 6,1921.

Application filed May 6, 1918. Serial No. 232,739.

T 0 all whom it may concern Be it known that FELIX E. VALOIS, a citiizen of the. United States, residing at Haverhill, in the county of Essex and State of Massachusetts, has invented certain new and useful Improvements in Sole-Laying Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in sole laying machines, such machines being adapted to press a cemented outer-sole against the innersole of a shoe to thereby secure these parts in proper position for the subsequent operations of sewing, loose nailing, etc. lVhile the devices of the present invention are especially intended for use with machines having the above described function, they cable to other types of machine, such for example as certain varieties of sole-leveling machines.

In sole laying machines of the above character it is customary to employ a sh0e-supporting jack and a resilient sole-pressing pad, such jack and pad being relatively movable to exert pressure between a shoe and a sole supported between the same. As the shank portion of a' shoe is usually unsymmetrical, the curvature thereof being quite different upon opposite sides of a centrally disposed line from the toe to the heel, it has been customary, in order to secure a uniform pressure over-the entire sole, with consequent adhesionthereof to all parts of.

the innersole, to use a pressing pad of unsymmetrical form. The pad commonly employed is provided upon its shanlcengagingportion with a pair or ridges for engagement with the opposite side portions of the shank of the sole, these humps or ridges, however, being of unlike form'.-and.,located one slightly nearer the heel portion of the shoe than the other in order to conform to the shape of the shank of the shoe upon its opposite sides, as above described.

Shoes as manufactured, however, comprise widely diflerent styles and shapes and it is thereforenecessary to keep in stock a large assortment of sole-pressing pads having shank-engaging humps or ridges variously disposed in order to secure the best results in operation of the machine. To fur ther complicate matters, it is'necessary to are also to some extent appliof spaced apart humps provide such padsin pairs, the complemen tary pads of a pair being shaped to corre spond with right and left shoes.

The making of pads of unsymmetrical form is expensive and the keeping'in stock of a large number of pads of different shapes is undesirable. The present invention therefore provides for the employment in a machine of the above character, of symmetrical pressing pads with an arrangement of parts whereby such pads may serve to 0perate successfully upon shoes of widely different styles, and whereby also, the same shape of pad may be employed for either right or left shoes.

In sole laying machines of that type in which either the shoe-supporting jack or the sole-pressing pad is moved through a uniform distance toward the other by power actuated devices for producing the necessary pressure between the parts, difficulty is experienced, due to variations in thickness of the material operated upon or in the height of last employed for supporting the shoe, in securing uniformity in operation, and-the present invention contemplates the provision. of mechanism for use in a machine of the type described whereby the shoe and sole are always subjected to the same pressure regardless of the height of last or thickness of material.

Other and further objects and advantages of the invention together with desirable combinations of parts and details of con struction will be hereinafter pointed out at length and particularly set forth in the appended claims, reference being had to the annexed drawings fora full disclosure of the invention .and in which,-

Figure 1 is a front elevation-0f so much of a machine of the type described as is necessary to'show the improvements forming the subject matter of this invention,

Fig. 2 is a side elevation of the parts shown in Fig. 1,

Fig. 3 is a sectional plan view on the line aa of Fig. 1,

Fig. 4 is a fragmentary rear elevation on a reduced scale illustrating the drive mechanism, and,

Fig. 5 is a vertical longitudinal section of Fig. 4.

Referring and wherein machine has to the drawings by numeral, approximately one-half of the been illustrated; the other half being identical in construction and operatron; the numeral designates a 'frame or base member of any suitable construction, and 11-11 spaced vertical parallel guide I by upper and lower guide sleeves 14-14 and rical.

in the base or frame 10, imparts a 13-13, respectively.

A. cam-carrying plate 16 (Fig. 5) 1S mounted to reciprocateupon suitable guide rollers 1.7 within the cross-head 12. A crank shaft18, journaled lateral reciprocatory movement to the plate 16 and may be driven in any suitable manner.

Carried upon the faceof the plate 16 is a cam block 19 designed to cooperate with a roller 20 carried adjacent the base of the cross-head 12, and to reciprocate said crosshead 12 vertically upon the guide rods 11-11 as the plate 16 is moved backward and forward by the crankarm 18.

A sole-pressing pad 21 is yieldingly supported upon cushion springs 22 within a cradle member 23, said cradle member being supported for rocking movement upon the cross-head 12 by trunnions 24". The solepressing pad 21 is provided intermediate its heel portion 24 and toe portion 25 with a pair of oppositelyv positioned humps or mounds 26, the contour of the surface of said sole-pressing pad 21, oneither side of its longitudinal center line being symmet- Slidably mounted for vertical movement upon the guide rods 11-11 through the medium of guide sleeves 28 is a second crosshead27 of substantially the same length from front to rear as the sole-carrying pad 21, and adapted to be normally supported uponnuts 27 upon guide rods 11-11.

Mounted upon the cross-head 27 and adapted to travel with the same is a composite shoe-supporting jack 29 comprising a heel member 30 and a toe member 31. Heel membe1t30 and toe member 31 are ad justable toward and from each other upon a guide bar 32 by-means of links 33, 34 pivotally connected toepposed arms 36 of a transverse lever '35 fast upon the lower end of a vertical shaft 37. The shaft 37 is journaled in the cross-head 27 at a point directly above the center of sole-pressing pad 21, a'hand wheel 38being-provided uponthe upper end of said shaft. By turning the hand wheel 38 .any required adjustment of the heel member 30 and toe member 31 toward and from,each. other may be secured to allowffor theproper positioning of shoes of varied sizes and shapes upon the jack.

The slioe-sup'porting jack 29 as'a, unit is frame 10 and below the.

adapted for angular adjustment with relation to the sole-pressing pad '21 forthepurpose of positioning the shoe at various angles upon said pad in order to properly. register the humps or mounds 26 with the respective high portions of the shank of the shoe upon which pressure is required. To

this end the said guide bar 32 is pivotally mounted upon the under face of the crosshead 27 by means of a bolt 40 adjacent the forward end thereof. At its opposite end said guide bar is held in any desired position of angular adjustment by means of a nut 41 upon'the stud 42, said stud projecting through arcuate, slots 43 in outstanding ears or lugs 44 formed upon the rearward end of the cross-head 27.

Means for producing thesame amount of pressure upon shoes of different last and having soles of various thicknesses are provided, comprising the following devices.

Contact lugs 45-45 are suitably securedupon the guide sleeves 14-14 of the crosshead 12, and are adapted to move vertically slidable rods 46-46 supported in guide brackets 47-47 secured upon the guide rods 11-11. At their lower ends the rods, 46 are provided with adjustable collars 48 which serve to limit the downward movement of said rods 46, and with retractile springs 49 normally acting to'retain the rods 46 in their downward position. Secured adjacent the upper ends of'the rods 46 are cam blocks 48 provided with cam normally to disengage locking dogs 51 from toothed racks 52 carried upon guide'sleeves 7 surfaces 50, said cam blocks being designed '100 the said members 51, 51 and against such- 7 roller the cam surface 50 of cam block 48 acts. 7 r The operation of the device is as follows. Considering first'the minimum thickness of last and sole upon which the machine is designed to operate, the cross-head 12, which 1S moved upwardly and downwardly through a uniform distance by the forward and backward movement of the cam: plate 16, V

rises upon the guide rods 11-11 until the sole-pressing pad 21 carried upon said crosshead 12 is: in contact with the sole of the shoe mounted upon the shoe-supporting jack 29, whereupon the contact lugs 45 engage the lower ends of the vertically sliding rods 46 to move the same in the guide brackets 47-47. At this point the shoesupporting jack 29 and the cross-head 27 i move together with the cross-head 12 a slight distancegsufficient to allow 'the cam bloeks'48, upon the rods .46, to clear the anti friction rollers 51'; Locking dogs "51" are then free to fall into the toothed racks 52 upon the cross-head 27 and lock the said cross head 27 against any "further upward movement. Furtherupward-movement of the cross-head l2 constitutes the pressure stroke.

If now shoes having lasts or soles of greater thickness (within certain limits) are placed in the machine, it will be seen that they will receive the same amount of pressure from pressure pad 21, owing to the fact that such increase in thickness of last is compensated for by an increased vertical movement of the shoe-supporting jack and the cross head 27, prior to locking of the latter, the distance the cross'head before the lugs 45 engage the endsof rods 46 being, however, constant, the cross-head 12 thus at all times traveling through the same distance while exerting pressure upon the sole. I I

Owing to the relative angular'adjustment of the shoe-supporting jack 29 and the sole pressing pad 21 various types and sizes of shoes, either rights or lefts, may be operated upon without changing the pad 21 as has heretofore been necessary in machines of this character. It is obvious that by varying the angular position of shoe ack 29 the effective position of the respective humps or mounds 26 of pad 21 with relation to the central transverse axis of a shoe supported upon said jack is so shifted that upon the upward movement of the pad-carrying mechanism said humps or mounds will be caused to register with the desired portions of the shank of the shoe upon which pressure is required.

Having thus now described the invention, together with a preferred embodiment of the same and the mode of operation thereof, what I claim and desire to secure by Letters Patent of the United States is,-

1. In a sole laying machine, in combination, a cross-head, a shoe-carrying jack provided with means for supporting the heel and toe portions of a shoe, and means for mounting said jack for pivotal adjustment upon said cross-head and about an axis adjacent the heel-supporting portion thereof on the opposite side of the cross head from said toe support portion.

2. In a machine for laying soles, in combi nation, a cross-head provided with a bearing surface upon its under side, and having a pivot'pin near one extremity thereof and an arcuate slot near the opposite extremity thereof, a member pivotally mounted to turn about said pivot pin for adjustment upon said bearing surface, a bolt engageable with said member and slidable within said slot for guiding and holding said member in adjusted position, and a shoe-supporting jack carried by said member.

3. In a machine for laying soles employ- 12 travels,

ing a sole-pressing pad of symmetrical form, means for reciprocating said pad, a cross head located above said. pad and substan tially coextensive in length therewith, a member pivoted near one end of said crosshead for angular adjustment upon-the lower surface thereof, means for securing said member in adjusted position, guideways upon said member and a composite shoesupporting jack comprising heel and toesupporting members slidable upon said guideways and simultaneously adjustable toward and from each other.

4. In a sole laying machine having a sole pressing pad and a shoe-supporting jack, a frame-member, a pair of parallel guide rods fixed thereto, a padcarrier slidable between and guided by said rods, a cross-head ad justably guided by said rods, a pair of ratchet members fixed to said cross-head, pawls pivoted upon fixed'supports and en gageable with said ratchets, and automatically acting means for determining the en gagement of said pawls and ratchets for fixing said cross-head in adjusted position against movement away from said pad.

5 In a; sole laying machine having a vertically slidable cross-head, in combination, means for automatically and adjustably fixing said cross-head against upward movement comprising a ratchet member fixed to the cross-head, a pawl engageable with said ratchet member and pivoted upon a fixed support, a pin projecting from said pawl, a vertically slidable rod, a cam member fixed to said rod and engaging said pin, resilient means for positioning said rod whereby said cam serves normally to disengage the pawl from the ratchet, and means for moving said rod and cam to permit engagement of said pawl with the ratchet.

6. In a machine for laying soles, a main frame, a pair of spaced, vertically extending rods fixed thereto, a sole-pressing pad carrier slidable upon said rods and provided with an abutment, means for reciprocating said carrier, a cross-head having a shoe-supporting jack and provided with guide sleeves arranged to take over the respective rods and to be guided thereby, means for supporting said cross-head in its lowermost position, a ratchet fixed to one of said sleeves, a fixed bracket, a pawl pivoted to said bracket and engageable with said ratchet, said pawl having a pin projecting therefrom, and a rod guided for vertical movement and having a cam member engageable with said pin for disengaging said pawl from the ratchet, said rod being engageable with said abutment upon the upward movement of the latter for disengaging said cam from its pin, thereby permitting said pawl to lock the cross-head against upward movement.

7. In a sole laying machine, two members comprising a reciprocable sole pressing pad and a reciprocable shoe supporting jack,

and a reciprocable shoe supporting jack,

v means forreciprocating said members together, and means for locking one of said members at a predetermined point while continuing the reciprocation of the other of said members in the same direction.

i). In a sole laying machine, two reciprooable pressure members, means for moving said members together in one direction, means for locking the forward one of said 7 members while the motion of the other continues, in such a manner as to lay the sole of a shoe held'therebetween.

10. In a sole laying machine, two members comprising a shoe supporting jack and a sole pressing pad, means for moving one of said members toward the other of said members and thereafter moving the other of said and members therewith, and means for arresting the movement of said other member at'a predetermined point while continuing the movement to a definite point of said one member.

11 In a sole laying machine, a sole supporting pad substantially symmetrical either side of its longitudinally center line, a shoe supporting jack relatively reoiprocable toward and "rom said pad, and means whereby said pad and jack may be relatively'adjusted to vary the operative relationsthereof to conform to either a right or left shoe supported by said jack.

12. In a sole laying machine, a sole supporting pad having a plurality of substantially symmetrically arranged humps thereon, rocable toward and from said. pad, and means for adjusting the operative relation of said jack and pad whereby said humps may be selectively, reversely, unsymmetrically related to a shoe supported on said jack to conform at will to right and left shoes.

In testimony whereof, he has signed his name to this specification.

FELIX EMILE VALOIS. v

a shoe supporting jack relatively recip- 

